body {
	font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
	max-width: 800px;
	margin: 0 auto;
	padding: 2em 1em;
	line-height: 1.5;
}

button {
	font-family: inherit;
	font-size: inherit;
	padding: 0.5em 1em;
	background-color: #333;
	color: white;
	border: none;
	border-radius: 2px;
	cursor: pointer;
}

button:hover {
	background-color: #555;
}

pre {
	tab-size: 2;
	background-color: #f4f4f4;
	padding: 0.5em;
	border-radius: 2px;
}

code {
	position: relative;
	background-color: #f4f4f4;
	padding: 0.3em 0.6em;
	top: -0.1em;
	line-height: 1;
	border-radius: 2px;
}